| Gahanna to Bicaz | 5,013.25 mi (8,068.04 km) |
| Gahanna to Bistrita | 4,946.03 mi (7,959.87 km) |
| Gahanna to Blaj | 4,966.79 mi (7,993.27 km) |
| Gahanna to Bocsa | 4,919.05 mi (7,916.44 km) |
| Gahanna to Boldesti-Scaeni | 5,095.96 mi (8,201.15 km) |
| Gahanna to Bolintin Vale | 5,112.27 mi (8,227.40 km) |
| Gahanna to Borsa | 4,928.92 mi (7,932.33 km) |
| Gahanna to Botosani | 4,996.05 mi (8,040.37 km) |
| Gahanna to Brad | 4,927.09 mi (7,929.38 km) |
| Gahanna to Bragadiru | 5,123.84 mi (8,246.03 km) |
| Gahanna to Braila | 5,155.31 mi (8,296.66 km) |
| Gahanna to Brasov | 5,052.02 mi (8,130.43 km) |
| Gahanna to Breaza | 5,075.29 mi (8,167.89 km) |
| Gahanna to Bucharest | 5,125.83 mi (8,249.22 km) |
| Gahanna to Buftea | 5,113.87 mi (8,229.97 km) |
